fix: Update DDS URL (#22)

Author: charmasaur

examples/export-a-dynamical-decoupling-sequence-to-qiskit.ipynb

@@ -61,7 +61,7 @@
     "\n",
     "This section demonstrates how a DDS can be prepared and a corresponding Qiskit circuit made and executed on a Qiskit simulator.\n",
     "\n",
-    "Q-CTRL Open Controls defines a DDS as a set of instantaneous unitary operations performed at specific offset times, see the [technical documentation](https://docs.q-ctrl.com/control-library#dynamical-decoupling-sequences) for mathematical details.\n",
+    "Q-CTRL Open Controls defines a DDS as a set of instantaneous unitary operations performed at specific offset times, see the [technical documentation](https://docs.q-ctrl.com/open-controls/references/qctrl-open-controls/qctrlopencontrols/DynamicDecouplingSequence.html) for mathematical details.\n",
     "\n",
     "Qiskit implements quantum computation through a series of [gates in a quantum circuit](https://qiskit.org/documentation/getting_started.html#circuit-basics). How these gates are physically implemented will depend on the device that it is run on.\n",
     "\n",
@@ -724,7 +724,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.7.10"
   },
   "toc": {
    "base_numbering": 1,